Affiliation:
1. Beni-Suef University
2. State University of New York (SUNY) Polytechnic Institute
3. Telecom Egypt
4. Arab Academy for Science, Technology and Maritime Transport
Abstract
Abstract
The backward Raman amplifier (RA) can considered as one of the best solutions for optical communication, especially in Wavelength Division Multiplexing (WDM) technology. They reduce the nonlinear effects, have low noise figure and a wide frequency range. The work in this paper aims to reduce the attenuation of optical signal due to its propagation optical fiber and increase both amplifier gain and output signal power. Two backward Raman models are proposed. Proposal one model consists of two cascaded RAs and the other (proposal two) consists of three cascaded RAs. Three backward pump power levels 200, 400, and 600 mW are used to simulate the models with the three types of fibers: single-mode fiber (SMF), Truewave, and Freelight, at an amplifier length of 100 km. Proposal two achieves a maximum gain of 31 dB at 600 mW pump power 600 mW using Truewave optical fiber, with 27.7 dBm maximum output signal power. This proposal is evaluated showing 11.15% gain enhancement and 200 mW saved power when compared to previously published work.
Publisher
Research Square Platform LLC
Reference21 articles.
1. Noise figure of distributed Raman amplifier with different pumping configurations in S-band: A new approach;Beshr A;Alexandria Eng. J.,2020
2. Ahmed, H., Toeima, Aly, M.H.: “Gain and noise performance of fiber Raman amplifiers," 5th International Computer Engineering Conference (ICENCO 2009), Cairo, Egypt, pp. NET1-6, 27–28 December (2009)
3. Symmetrical and post dispersion compensation in WDM optical communication systems;Sayed AF;Opt. Quant. Electron.,2021
4. Rashed, A.N.Z.: “New Trends of Forward Fiber Raman Amplification for Dense Wavelength Division Multiplexing (DWDM), Photonic Communication Networks, International Journal of Soft Computing, vol. 6, no. 2, pp.26–32, (2011)
5. Wideband multiwavelength output generation based on cascaded four-wave mixing in distributed Raman amplifier utilizing a Fabry-Pérot laser diode;Al-Alimi AW;Opt. Laser Technol.,2017